Charles Robinson Sykes (British 1875-1950); an interesting collection of original figural design sketches, two plaster maquettes and Sykes' personal 'Spirit of Ecstasy' desk mascot

Charles Robinson Sykes (British 1875-1950); an interesting collection of original figural design sketches, two plaster maquettes and Sykes' personal 'Spirit of Ecstasy' desk mascot,
including a self-portrait plaster maquette of Sykes in standing pose wearing dressing gown, stained green colouring, 24cm high, a plaster erotic figural group of a male with three 18th century women in various states of undress, 36cm high, and 13 leaves of preliminary studio sketches by Sykes, nine on tracing paper (15 x 11cm) and four on paper or card (various sizes), majority in pen and ink and two with sepia wash, unsigned but with annotations, for various proposed sculptural designs including the aforementioned figural group, a Rolls-Royce 'Spirit of Ecstasy' plaster maquette design for the mascot, and other preparatory sketches for various works, one drawn to the reverse of a 1940 Fifth Summer Exhibition invitation at the Royal Institute galleries, some possibly mascot designs including a 'Diana' Archer and an 'Apollo Sun God', and a signed hand-written letter from Sykes to a Mr Avery, dated '27-6-41' with humourous pen and ink line drawing to reverse of Sykes' gardener 'Eric the Composter', and a 1953 postmarked envelope to 'Mr Sam Avery Esq' of Southall, hand-written 'Sykes Drawings', and offered together with Sykes's personal 'Spirit of Ecstasy' mascot, 'cire perdue' cast nickel-plated, of the iconic Rolls-Royce mascot, marked 'R.R.Ltd. 6.2.11' and 'Charles Sykes' around the base, with 'Reg.US.Pat.Off.' and 'Trade Mark Reg.' markings under the wings, with original patina, 16cm high and mounted on a turned wooden base, specially produced as a desk-piece for Sykes and reportedly displayed on his desk.
(Qty)